The last major racial riot occurred in Los Angeles after four police officers were acquitted in the brutal beating of Rodney King. That was 21 years ago. Since then, there have been several other racially-charged cases that might have provoked an outpouring of protest but did not. The police officers who murdered Sean Bell in a hail of 50 bullets were acquitted in 2008, and no riots ensued. The indictment of the officer that shot and killed Bronx teenager Ramarley Graham was tossed out earlier this year, even with footage of the police following him into his Bronx home. His mother didn’t call for riots. She made t-shirts to protest.

In some ways, the calls for order recapitulate what this case is all about – the assumption of violence on the part of the black community, and of black men. No one seems to be concerned about the possible violence of Zimmerman supporters if Zimmerman is convicted. To try to preemptively deter the black community from taking matters into their own hands should they feel justice has not been done is ironic considering that Zimmerman’s actions themselves were a kind of vigilantism – a violence above and beyond what many, including the prosecution and Martin’s family, feel was necessary.